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Circulation Heater Drawings

Circulation heaters consist of either a screwplug or flange immersion heater mounted in a pipe vessel. These complete units are designed to heat flowing liquids or gases. Ideal for side-arm or in-line applications, the medium being heated is directed past the heating elements allowing for quick response, even heat distribution and accurate process temperature control. Each assembly is equipped with: heating elements, insulated pipe vessel, terminal enclosure, mounting blocks, inlet/outlet connections, and drain plug. Because of their compact size, circulation heaters are easy to install and maintain with minimal time and labor. STS can build circulation heaters for new applications or replicate existing designs for direct replacements.

Standard Features

  • MgO filled tubular elements to maximize heat transfer
  • Element support rings standard on heaters over 24”, baffling is also available
  • SCH 40 pipe body, nozzles and end cap
  • Vessel materials include Carbon Steel, 304 stainless steel, 316 stainless steel and Titanium
  • nozzle connections include sanitary fittings or ANSI industry standard threaded or flanged
  • PTFE flange gasket standard, spiral wound carbon gaskets also available
  • Optional mounting block positions provide support and allow for easy installation
  • 1-½” mineral wool insulation around pipe vessel rated to 1000°F
  • Galvanized steel outer jacket (304 and 316 ss also available) protects both insulation and vessel